blob: 68ea3e2ba5b384517af424ec3b7444982025eb05 (
plain)
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require("ext")
local line = io.read("*a")
local buf = {}
for i = 1,14 do
table.insert(buf, line:sub(i,i))
end
function checkbuf()
local s,u = {},0
for _,v in pairs(buf) do
if not s[v] then
s[v] = true
u = u + 1
end
end
if u == 14 then
return true
end
end
if checkbuf() then print(14) end
for i = 15,#line do
table.remove(buf,1)
table.insert(buf,line:sub(i,i))
if checkbuf() then
print(i)
break
end
end
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